▎ 摘　　要

NOVELTY - Non-migrating graphene oxide grafted antioxidant is claimed. The antioxidant is obtained by grafting modification of graphene oxide with 4-aminodiphenylamine to form hydroxy group in carboxy group of graphene oxide by R group substitution, where graft ratio of R group is 7-15 wt.%. USE - Used as non-migrating graphene oxide grafted antioxidant. DETAILED DESCRIPTION - Non-migrating graphene oxide grafted antioxidant is claimed. The antioxidant is obtained by grafting modification of graphene oxide with 4-aminodiphenylamine to form hydroxy group in carboxy group of graphene oxide by R group substitution, where graft ratio of R group is 7-15 wt.%. R = 4-(phenylamino)phenylamino. An INDEPENDENT CLAIM is also included for preparing non-migrating graphene oxide grafted antioxidant comprising (i) dissolving graphene oxide in thionyl chloride, then refluxing for 1-3 hours, separating reaction product, washing and removing thionyl chloride to obtain thionyl chloride modified graphene oxide, and (ii) adding thionyl chloride-modified graphene oxide into dimethylformamide, and ultrasonically dissolving thionyl chloride-modified graphene oxide to obtain solution of thionyl chloride modified graphene oxide having concentration of 0.5-1 mg/ml, dissolving 4-aminodiphenylamine in dimethylformamide, and then mixing thionyl chloride-modified graphene oxide solution with the 4-aminodiphenylamine solution, controlling to form mixture, where mass ratio between thionyl chloride-modified graphene oxide and 4-aminodiphenylamine is 1:15-30, performing re-flow reaction for 40-60 hours, performing solid-liquid separation, soaking obtained solid phase in absolute ethanol, and soaking solid product after, separating and drying.